Small fix for Linux Viewport.
Small fix for Linux Viewport.

chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,errordeveloper/fe-devel,errordeveloper/fe-devel,errordeveloper/fe-devel,errordeveloper/fe-devel,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,chbfiv/fabric-engine-old,errordeveloper/fe-devel,chbfiv/fabric-engine-old,errordeveloper/fe-devel,errordeveloper/fe-devel